Aggregation Behavior of Graft Copolymer with Rigid Backbone

被引：94

作者：

Cai, Chunhua ^{[1
]}

Lin, Jiaping ^{[1
]}

Chen, Tao ^{[1
]}

Tian, Xiaohui ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Shangkai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

来源：

LANGMUIR | 2010年 / 26卷 / 04期

基金：

中国国家自然科学基金;

关键词：

COIL BLOCK-COPOLYMERS; POLYPEPTIDE DIBLOCK COPOLYMERS; SOLID-STATE STRUCTURE; GLYCOL) SIDE-CHAINS; POLY(ETHYLENE GLYCOL); AQUEOUS-SOLUTIONS; POLY(GAMMA-BENZYL L-GLUTAMATE); MULTIPLE MORPHOLOGIES; TRIBLOCK COPOLYMERS; LIGHT-SCATTERING;

D O I：

10.1021/la902834m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The self-assembly behavior of poly(gamma-benzyl-L-glutamate)-graft-poly(ethylene glycol) rod-coil graft copolymers in aqueous solution was investigated. With tetrahydrofuran (THF) as initial solvent, vesicles were observed for the graft copolymers with lower degree of grafting. When the degree of grafting increases, the aggregate morphology transforms from vesicles to spindle-like micelles then to spherical micelles. When N,N'-dimethylformamide (DMF) is introduced into the initial solvent, the vesicles transform to spindles. Increasing DMF volume fraction leads to it spindle to connected-spindle transition. On the basis of the experimental results, the mechanism of the morphological transition of the rod-coil graft copolymer is suggested.

引用

页码：2791 / 2797

页数：7

共 80 条

[1] MICELLIZATION OF POLY(ETHYLENE OXIDE)-POLY(PROPYLENE OXIDE)-POLY(ETHYLENE OXIDE) TRIBLOCK COPOLYMERS IN AQUEOUS-SOLUTIONS - THERMODYNAMICS OF COPOLYMER ASSOCIATION [J].